4 citations · 8 across the 6 of their papers we have counts for
7 papers
The rank-nullity ring of a matroid
Tara Fife, Eline Mannino, Felipe Rincón
We introduce the rank-nullity ring of a matroid , which is a subring of the Chow ring of the permutahedral toric variety. This subring contains the tautological Chern classes of…
The natural matroid of an integer polymatroid
Joseph E. Bonin, Carolyn Chun, Tara Fife
The natural matroid of an integer polymatroid was introduced to show that a simple construction of integer polymatroids from matroids yields all integer polymatroids. As we illustr…
The excluded minors for lattice path polymatroids
Joseph Bonin, Carolyn Chun, Tara Fife
We find the excluded minors for the minor-closed class of lattice path polymatroids as a subclass of the minor-closed class of Boolean polymatroids. Like lattice path matroids and…
Reciprocal maximum likelihood degrees of diagonal linear concentration models
Christopher Eur, Tara Fife, José Alejandro Samper +1
We show that the reciprocal maximal likelihood degree (rmld) of a diagonal linear concentration model of dimension is equal to $(-2)^rχ_M( \…
Matroids with a cyclic arrangement of circuits and cocircuits
Nick Brettell, Deborah Chun, Tara Fife +1
For all positive integers exceeding one, a matroid has the cyclic -property if its ground set has a cyclic ordering such that every set of consecutive elemen…
Generalized Laminar Matroids
Tara Fife, James Oxley
Nested matroids were introduced by Crapo in 1965 and have appeared frequently in the literature since then. A flat of a matroid is Hamiltonian if it has a spanning circuit. A m…
Laminar Matroids
Tara Fife, James Oxley
A laminar family is a collection of subsets of a set such that, for any two intersecting sets, one is contained in the other. For a capacity function on $\mat…